Chair



FIG. 1 shows a perspective view of my design for a chair;

FIG. 2 shows a front view thereof;

FIG. 3 shows a side view thereof, with the opposite side view being a mirror image;

FIG. 4 shows a rear view thereof;

FIG. 5 shows a top view thereof; and,

FIG. 6 shows a bottom view thereof.

The dotted lines show environmental structure and form no part of the claimed invention. 

The ornamental design for a chair, as shown and described. 